The Drayton LP111 24 Hour Electronic Timeswitch (25477) is a simple, reliable single-channel timer built for combination boilers or separate zone control applications. Where straightforward on/off time control is all that's needed, the LP111 delivers it through an easy-to-read backlit display and four clear switching options, making it a long-standing favourite for homeowners who want dependable heating control without unnecessary complexity.
Built-in boost and advance functions, a holiday mode setting, and automatic summer/winter time changes give the LP111 more day-to-day flexibility than a basic mechanical timer, while its industry-standard wallplate mounting makes it a drop-in replacement for most existing single-channel timeswitches.
24hr
Programme Cycle
3
On/Off Periods per Day
230V
Supply Voltage
2(1)A
Volt-Free Contact Rating
93×148×31mm
H×W×D
2 Years
Guarantee
24 Hour Programme Control
Runs the same programme every day, with up to 3 on/off switching periods, suited to combination boilers or a single zone control application.
Boost & Advance Functions
The integral boost and advance modes let the user bring on extra heating or hot water at short notice, or skip ahead to the next scheduled period.
Holiday Mode
A dedicated holiday mode setting suspends the normal programme while away, helping to avoid unnecessary energy use without losing the stored schedule.
Automatic Summer/Winter Time Change
The clock automatically adjusts for BST/GMT, so the programme stays accurate through the year without manual resetting.
Backlit Digital Display
A clear backlit screen with intuitive slider switches makes programming and everyday use straightforward, even in low light.
Industry-Standard Wallplate
Fits the standard UK backplate used across most timeswitches, simplifying installation and future replacement.
Important Safety Information
The LP111 is designed for fixed wiring only, in accordance with current IET wiring regulations (BS 7671). Installation and wiring should be carried out by a competent person, with the mains electrical supply isolated before starting work.
Please Note
The LP111 is a single-channel timer suitable for combination boilers or separate zone control, and works with both fully pumped and gravity-fed systems. Where independent heating and hot water timings are required, the two-channel LP241 or LP522 programmers are the appropriate choice instead.
Technical Specification
Identification
Brand
Drayton
Model
LP111
Manufacturer Part Number (MPN)
25477
Range
Lifestyle LP
Country of Origin
UK
Programme & Control
Timer Cycle
24 hour (same programme every day)
Switching Periods
3 on/off periods per day
Preset Programme
1 built-in standard programme
Boost / Advance
Yes
Holiday Mode
Yes
Time Change
Automatic summer/winter (BST/GMT)
Electrical
Supply Voltage
230V, 50Hz
Contact Rating
SPDT, 2(1)A, volt free
Wiring
3-wire installation, fixed wiring only
Physical
Height
93mm
Width
148mm
Depth
31mm
Colour
White
Mounting
Industry-standard wallplate
Standards & Warranty
Compliance
BS 7671, Part L compliant
Manufacturer Guarantee
2 years
Typical Applications
Combination boiler systems requiring simple single-channel time control. Separate zone control where an independent on/off schedule is needed for one circuit. Fully pumped or gravity-fed systems as a straightforward, no-frills replacement timer.
Frequently Asked Questions
Is the LP111 suitable for both heating and hot water?
The LP111 is a single-channel timer, so it controls one circuit — typically used for combi boiler heating control or a single zone. Where separate heating and hot water timings are needed, the two-channel LP241 or LP522 are the appropriate models.
How many on/off periods can be set per day?
The LP111 offers 3 on/off switching periods per day, run on a 24-hour cycle so the same programme repeats every day of the week.
What happens if the boost or advance button is used?
The boost and advance functions allow extra heating or hot water on demand, or let the programme be advanced to the next scheduled switching point without altering the underlying programme.
Does the clock need resetting for daylight saving time?
No. The LP111 includes automatic summer/winter (BST/GMT) time change, so the programme stays accurate through the year without manual adjustment.
Is this suitable for gravity-fed heating systems?
Yes, the LP111 is suitable for both fully pumped and gravity-fed systems, making it a versatile replacement across older and newer heating installations.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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